package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class JDBCDemo7 {
    public static void main(String[] args) {
        UserInfo userInfo = InputUtil.getInputObject( new UserInfo(),"欢迎登录","登录");
        try (
                Connection connection = DBUtil.getConnection()
                ){
            String sql = "SELECT id,username,password,nickname,age "+
                         "FROM userinfo "+
                         "WHERE username=? AND password =? ";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1,userInfo.getUsername());
            ps.setString(2,userInfo.getPassword());

            ResultSet rs = ps.executeQuery();
            if (rs.next()){
                System.out.println("登录成功");
            }else {
                System.out.println("登录失败,用户名或密码错误!");
            }
        } catch (SQLException e) {
            e.printStackTrace();
        }

    }
}
